This Harry Potter pin was designed for a very niche audience, as they won't just appeal to Harry Potter fans, but specifically the fragment of the fandom that is transgender. Of course, if you simply support the transgender community you could also wear this lapel pin.
Created by Jackson Bird and available online from DFTBA.com, the Transgender Deathly Hallows Lapel Pin features the triangular shape with circle and elder wand inside, but it is also morphed with the official transgender symbol. The 1 inch Harry Potter pin is a definitive symbol of the magical series, but also allows the wearer to "proudly show your identity as or support of both Potter nerds and radical gender non-conformists at once." The accessory is fastened with a butterfly clutch backing.